Gaya APA
Schur, Norman W.. (1989).
A Dictionary Of Challenging Words .
London:
Penguin Books.
Gaya Chicago
Schur, Norman W..
A Dictionary Of Challenging Words.
London:
Penguin Books,
1989.
Referensi.
Gaya MLA
Schur, Norman W..
A Dictionary Of Challenging Words.
London:
Penguin Books,
1989.
Referensi.
Gaya Turabian
Schur, Norman W..
A Dictionary Of Challenging Words.
London:
Penguin Books,
1989.
Referensi.